twitter
vb
1 chatter, cheep, chirp, chirrup, trill, tweet, warble, whistle
2 chatter, giggle, prattle, simper, snigger, titter
n
3 call, chatter, cheep, chirp, chirrup, cry, song, trill, tweet, warble, whistle
4 agitation, anxiety, bustle, dither (chiefly Brit.) excitement, flurry, fluster, flutter, nervousness, tizzy (informal) whirl